I've searched for related threads, but can't find anyone reporting this same issue so I'm hoping I may just be missing something somewhere...
I've read he Usage instructions for Events+ integration with Marketpress, but can't seem to get that working. I activated the Marketpress add on in the Events settings. I then created a product to be associated with the event, and assigned it to the Events product category I had created. When creating the event, however, there is no option to select any product.
You will then see an additional dropdown menu in the Event Details when you create/edit an event where you can select the MarketPress product your event should be associated with as mentioned above.
This menu appears nowhere on the Event editor page. I have ruled out any plugin conflict, and tested using Twenty Sixteen theme with the same results.
Any suggestions are welcome. Support access has been granted on our dev install at kitchen.pieoneer.com if anyone cares to investigate further.